EP0979772A2 - Vorderradgabel- Aufhängung für Mountainbike - Google Patents

Vorderradgabel- Aufhängung für Mountainbike Download PDF

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Publication number
EP0979772A2
EP0979772A2 EP19990102394 EP99102394A EP0979772A2 EP 0979772 A2 EP0979772 A2 EP 0979772A2 EP 19990102394 EP19990102394 EP 19990102394 EP 99102394 A EP99102394 A EP 99102394A EP 0979772 A2 EP0979772 A2 EP 0979772A2
Authority
EP
European Patent Office
Prior art keywords
brake
suspension fork
front suspension
leg
operating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19990102394
Other languages
English (en)
French (fr)
Inventor
Laurence K. Danter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Answer Products Inc
Original Assignee
Answer Products Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Answer Products Inc filed Critical Answer Products Inc
Publication of EP0979772A2 publication Critical patent/EP0979772A2/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K25/00—Axle suspensions
    • B62K25/04—Axle suspensions for mounting axles resiliently on cycle frame or fork
    • B62K25/06—Axle suspensions for mounting axles resiliently on cycle frame or fork with telescopic fork, e.g. including auxiliary rocking arms
    • B62K25/08—Axle suspensions for mounting axles resiliently on cycle frame or fork with telescopic fork, e.g. including auxiliary rocking arms for front wheel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62L—BRAKES SPECIALLY ADAPTED FOR CYCLES
    • B62L1/00—Brakes; Arrangements thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62L—BRAKES SPECIALLY ADAPTED FOR CYCLES
    • B62L3/00—Brake-actuating mechanisms; Arrangements thereof
    • B62L3/02—Brake-actuating mechanisms; Arrangements thereof for control by a hand lever
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
    • F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
    • F16D55/228—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a separate actuating member for each side
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2121/00—Type of actuator operation force
    • F16D2121/02—Fluid pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2125/00—Components of actuators
    • F16D2125/18—Mechanical mechanisms
    • F16D2125/20—Mechanical mechanisms converting rotation to linear movement or vice versa
    • F16D2125/34—Mechanical mechanisms converting rotation to linear movement or vice versa acting in the direction of the axis of rotation
    • F16D2125/36—Helical cams, Ball-rotating ramps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2125/00—Components of actuators
    • F16D2125/18—Mechanical mechanisms
    • F16D2125/58—Mechanical mechanisms transmitting linear movement
    • F16D2125/60—Cables or chains, e.g. Bowden cables

Definitions

  • This invention relates to a front suspension fork for mountain bikes and the like, wherein the suspension fork includes an integral housing portion containing a chamber for receiving the mechanical, hydraulic, or mechanical-hydraulic operating means of a disk brake system. Also formed integrally with the suspension fork are support means for supporting at least an intermediate portion of the flexible connecting means that connect the handlebar-mounted hand grip actuator with the disk brake operating means.
  • handlebar-mounted hand grip means are utilized in connection with a flexible connecting means to actuate the disc brake means.
  • a coaxial cable is used as the flexible connecting means.
  • a hose serves to transmit the pressure fluid to the brake operating means.
  • the support means comprises clasp means including a pair of spaced arms that define a space for receiving the flexible hose or the outer sheath of a coaxial cable.
  • the fork leg includes means for receiving internally the flexible connecting means in a protected manner. More particularly, the leg contains a longitudinally-extending integrally-formed offset portion defining a protective channel having opposed end walls containing openings through which the flexible connecting means enters and exits, respectively.
  • the leg includes and integrally-formed tab or eyelet having an opening for receiving the flexible connecting means.
  • Fig. 1 it is well known in the motorcycle art to provide the front wheel 2 of a motorcycle 4 with disk brake means 6 that are operated by hand grip means 8 added on the front handle bars 10.
  • FIG. 2 it was proposed in the Tsurumaki, et al., Patent No. 5,092,421 to provide shield means 12 for protecting the hydraulic disk brake operating means, and a front fork protector 14 for protecting the hose 16 that supplies pressure fluid to the hydraulic disk brake means 20.
  • Figs. 3 and 4 it was proposed in the Hinkens, et al., (Hayes Industrial Brake, Inc.) Patent No. 5,390,771 to provide hydraulic operating means 24 for displacing a pair of spaced brake shoes 26 and 28 on opposite sides of a circular brake disk 30 that is connected with the wheel hub 32 that rotates on axle 34.
  • the hydraulic motor means 24 is clamped to the front fork 34 of the bicycle by clamp means 36.
  • the master brake cylinder 38 is mounted on the hydraulic brake means 24 for actuation by a lever 40 that is operated by the hand grip via operating cable 42.
  • the master brake cylinder supplies pressure fluid to the remote ends of the pistons 42 and 44, thereby to compress the brake shoes 26 and 28 against opposite sides of the circular disk 30.
  • Fig. 5 illustrates a corresponding mechanical brake actuating means 50 that is operable by lever 52 to compress the brake shoes 54 and 56 against opposite sides of the brake disk 58.
  • the arrangement of Fig. 5 is described in greater detail in the Hunnicutt, et al. (Hayes Industrial Brake, Inc.) Patent No. 5,000,294.
  • the fork 60 is of generally U-shaped configuration including a pair of downwardly extending leg portions 60a and 60b that are joined at their upper ends by a bridging yolk portion 60c.
  • the leg portions of the front suspension fork member -- which is preferably cast from a suitable metal such as steel or aluminum alloy -- are provided at their lower ends with hook potions 62 that are connected with the axle of a conventional mountain bike.
  • the leg potions 60a and 60b are connected with the steering shaft 64 of the mountain bike via a pair of shock absorbers 66, as is known in the art.
  • the lower rear potion of one leg 60b of the front suspension fork is provided with a pair of vertically spaced raised pads 68 to which are bolted the hydraulic brake means 70, as shown in Fig. 7.
  • the pair of brake shoes are compressed on opposite sides of the brake disk 74, thereby to apply braking force to the bicycle.
  • Figs. 8-10 three embodiments of the present invention are illustrated which include, in accordance with the present invention, disk brake operating means contained in housings 170, 270, and 370 that are integral with the leg potions 160b, 260b, and 360b of the front suspension forks 160, 260, and 360, respectively.
  • the brake operating means are operable to brake a brake disk 480 that is connected with the bicycle wheel for a rotation about the axis A of an axle (not shown) that is mounted between the mounting brackets 462 at the lower extremities of the leg portions 460a and 460b of the front fork 460.
  • the brake means 170 includes a brake housing 182 that is cast integrally with the leg portion 160b.
  • the brake-operating means is of the mechanical type that is operable by a lever 184 that is pivotally connected at one end with the housing by pivot means 186.
  • a screw member 188 Secured to the lever is a screw member 188 that is threadably connected within the threaded bore 190 contained in cylindrical member 192 which is mounted for sliding movement within a chamber contained in the brake housing 182.
  • Carried by the end of the member 192 is a first brake shoe 194 that is formed of sintered metal or other suitable braking material known in the art.
  • the first brake shoe 194 is arranged on one side of the upper portion of the brake disk 180.
  • a corresponding second brake shoe 196 mounted on the other side of the brake disk 180 opposite the first brake shoe 194 is a corresponding second brake shoe 196 that is carried by a cover member 198 that is bolted to the housing 182 by bolt means 200.
  • Coil spring 202 normally biases lever 184 toward its illustrated disengaged position in which the brake shoe 194 is retracted toward the disengaged position illustrated in Fig. 14.
  • Lever 184 is operated from the hand grip means 204 via flexible coaxial cable means 206 having an inner movable member 208 that is connected at its lower end with the lever 184.
  • the flexible operating means 206 includes an intermediate portion 206a that extends in protected relationship through a longitudinally-offset channel portion 160d that is cast integrally with the leg 160b.
  • the flexible connecting means 206 passes through aligned openings 210 and 212 contained in the opposite end walls of the offset longitudinal channel portion 160d.
  • FIG. 17 another embodiment is disclosed including hydraulic motor means 370 for braking the associated brake disk 380.
  • the brake housing 382 is cast integrally with the leg portion 360b of the mountain bike front suspension fork 360.
  • a pair of brake shoes 394 and 396 are displaced toward or away from each other on opposite sides of the brake disk 380 by means of piston motor means 400 and 402 that are mounted in cylinders 404 and 406, respectively, that are contained in corresponding brake chambers formed in the housing 382 and in the cover section 398, respectively.
  • Compression springs 408 and 410 normally bias the brake shoes 394 and 396 apart toward their deactivated positions relative to the brake disk 380.
  • the flexible connecting means 306 comprises a hose having an intermediate portion supported against the leg 360b by vertically spaced clip means 307 each including a pair of laterally spaced arms 309 that define a space for receiving the intermediate portion 306a of the hose 306.
  • the lower portion of the flexible hose 306 is contiguously supported by the peripheral surface of the housing 370 of the hydraulic motor means.
  • the hose 306 is connected between the hydraulic motor means 370 and the master cylinder 372 that is arranged adjacent the hand grip means 308.
  • the master cylinder 372 when the master cylinder 372 is operated by the hand grip means 308, pressure fluid is supplied to the working chambers associated with pistons 400 and 402, thereby to displace the brake shoes 394 and 396 together on opposite sides of the brake disk 380.
  • the master cylinder could be located directly on the housing 382, whereby operation of the master cylinder 372 would be effected by movement of an associated lever 414 from the hand grip 308 via a coaxial cable arrangement 416.
  • the master cylinder could be remotely located immediately adjacent the hand grip means, or could be located on or directly within a chamber contained within the brake housing 382.
  • the coaxial cable means 206 includes a inner member 208 that extends downwardly from the support clasp means 307a toward an eyelet opening 309 that is contained in the integral tab portion contained in the eyelet portion 211 that is integral with the cast leg portion 260b.
  • the outer sheath of the coaxial cable is supported by the clasp means 307a.
  • the fork members are preferably formed from metal by casting, it is apparent that these elements could be formed equally as well from synthetic plastic or composite materials by machining, molding, or other metal or plastic-working techniques.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transmission Of Braking Force In Braking Systems (AREA)
  • Braking Arrangements (AREA)
  • Motorcycle And Bicycle Frame (AREA)
EP19990102394 1998-08-13 1999-02-08 Vorderradgabel- Aufhängung für Mountainbike Withdrawn EP0979772A2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US133680 1993-10-07
US13368098A 1998-08-13 1998-08-13

Publications (1)

Publication Number Publication Date
EP0979772A2 true EP0979772A2 (de) 2000-02-16

Family

ID=22459806

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990102394 Withdrawn EP0979772A2 (de) 1998-08-13 1999-02-08 Vorderradgabel- Aufhängung für Mountainbike

Country Status (2)

Country Link
EP (1) EP0979772A2 (de)
TW (1) TW450915B (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2389349A (en) * 2002-06-06 2003-12-10 Jack Lin Front suspension assembly for bicycle wheel
FR2852915A1 (fr) * 2003-03-27 2004-10-01 Gilles Reguillon Frein a disque pour cycles vtt ou route, a etrier integre dans la structure du cycle, fourche avant ou cadre de roue arriere
EP2159150A1 (de) * 2008-09-02 2010-03-03 Canyon Bicycles GmbH Fahrradgabel für Scheibenbremsen
CN102700672A (zh) * 2012-06-19 2012-10-03 南京工程学院 可刹车自行车脚撑
US11796026B2 (en) 2012-05-09 2023-10-24 Fox Factory, Inc. Method and apparatus for an adjustable damper

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3989261A (en) 1975-07-24 1976-11-02 Honda Giken Kogyo Kabushiki Kaisha Motorcycle front-wheel suspension with means for restraint of compression of a telescopic front upon braking
US4159123A (en) 1977-08-18 1979-06-26 Petty Preston L Motorcycle braking mechanism including means for controlling telescoping action of the front fork means
US4715479A (en) 1986-06-17 1987-12-29 Hayes Industrial Brake, Inc. Retraction type support assembly for a floating caliper disc brake
US5000294A (en) 1985-04-08 1991-03-19 Hayes Industrial Brake, Inc. Self-adjusting caliper
US5092421A (en) 1989-11-10 1992-03-03 Suzuki Jidosha Kogyo Kabushiki Kaisha Front fork assembly for motorcycle
US5193833A (en) 1990-08-24 1993-03-16 Robert Reisinger Bicycle front suspension, steering & braking system
US5390771A (en) 1993-04-22 1995-02-21 Hayes Industrial Brake, Inc. Hydraulic caliper brake assembly for a bicycle
US5647459A (en) 1995-05-16 1997-07-15 Hayes Industrial Brake, Inc. Parking brake

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3989261A (en) 1975-07-24 1976-11-02 Honda Giken Kogyo Kabushiki Kaisha Motorcycle front-wheel suspension with means for restraint of compression of a telescopic front upon braking
US4159123A (en) 1977-08-18 1979-06-26 Petty Preston L Motorcycle braking mechanism including means for controlling telescoping action of the front fork means
US5000294A (en) 1985-04-08 1991-03-19 Hayes Industrial Brake, Inc. Self-adjusting caliper
US4715479A (en) 1986-06-17 1987-12-29 Hayes Industrial Brake, Inc. Retraction type support assembly for a floating caliper disc brake
US5092421A (en) 1989-11-10 1992-03-03 Suzuki Jidosha Kogyo Kabushiki Kaisha Front fork assembly for motorcycle
US5193833A (en) 1990-08-24 1993-03-16 Robert Reisinger Bicycle front suspension, steering & braking system
US5390771A (en) 1993-04-22 1995-02-21 Hayes Industrial Brake, Inc. Hydraulic caliper brake assembly for a bicycle
US5647459A (en) 1995-05-16 1997-07-15 Hayes Industrial Brake, Inc. Parking brake

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2389349A (en) * 2002-06-06 2003-12-10 Jack Lin Front suspension assembly for bicycle wheel
GB2389349B (en) * 2002-06-06 2005-07-13 Jack Lin Front suspension device for bicycles
FR2852915A1 (fr) * 2003-03-27 2004-10-01 Gilles Reguillon Frein a disque pour cycles vtt ou route, a etrier integre dans la structure du cycle, fourche avant ou cadre de roue arriere
WO2004085235A1 (fr) * 2003-03-27 2004-10-07 Gilles Reguillon Frein à disque pour cycles vtt ou route, à étrier intégré dans la structure du cycle, fourche avant ou cadre de roue arrière
EP2159150A1 (de) * 2008-09-02 2010-03-03 Canyon Bicycles GmbH Fahrradgabel für Scheibenbremsen
WO2010025991A1 (de) * 2008-09-02 2010-03-11 Canyon Bicycles Gmbh Fahrradgabel für scheibenbremsen
US11796026B2 (en) 2012-05-09 2023-10-24 Fox Factory, Inc. Method and apparatus for an adjustable damper
US11808322B2 (en) 2012-05-09 2023-11-07 Fox Factory, Inc. Method and apparatus for an adjustable damper
US12129909B2 (en) 2012-05-09 2024-10-29 Fox Factory, Inc. Method and apparatus for an adjustable damper
CN102700672A (zh) * 2012-06-19 2012-10-03 南京工程学院 可刹车自行车脚撑

Also Published As

Publication number Publication date
TW450915B (en) 2001-08-21

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